Rockwell
Automation
1606-XLE80E-2 24V, 3.3A; Single Phase Input
10000108328
(Version 00)
www.ra.rockwell.com
Page 20
26.10.
O
PERATION ON
T
WO
P
HASES
Fig. 26-6 Schematic for two phase operation
2
40V
+
10%
ma
x.
Fuse
L2
L1
L3
L
N
PE
Power Supply
AC
DC
internal
fuse
Instructions for two phase operation:
a)
A phase to phase connection is allowed as long as the supplying voltage is
below 240V
+10%
.
b)
Use a fuse or a circuit breaker to protect the N input. The N input is
internally not protected and is in this case connected to a hot wire.
Appropriate fuses or circuit breakers are specified in section 26.9 “External Input
Protection”.
26.11.
U
SE IN A
T
IGHTLY
S
EALED
E
NCLOSURE
When the power supply is installed in a tightly sealed enclosure, the temperature inside the enclosure will be higher than outside. The inside
temperature defines the ambient temperature for the power supply.
Results from such an installation:
Power supply is placed in the middle of the box, no other heat producer inside the box
Enclosure:
Type IP66 Box PK 9516 100, plastic, 110x180x165mm
Input:
230Vac
Load:
24V,
3.3A; load is placed outside the box
Temperature inside the box: 45.7°C (in the middle of the right side of the power supply with a distance of 1cm)
Temperature outside the box: 27.3°C
Temperature rise:
18.4K
Load:
24V,
2.64A; (=80%) load is placed outside the box
Temperature inside the box: 41.8°C (in the middle of the right side of the power supply with a distance of 1cm)
Temperature outside the box: 26.5°C
Temperature rise:
15.3K
